http://www.xavier.edu/green/flora/taxus

Yew: evergreen conifer with flat single needles that spiral around the branch, but the needles twist to appear to form two rows.The cones in a berry-like structure called an aril, that contains a single seed.Some yews are thousands of years old.The Pacific yew is the source for Taxol, used to treat breast cancer.Yews were used for longbows in medieval Wales and England.